Alarm-clock.



I PATENTED SEPT. 24, 1907. P. LUX.

ALARM CLOCK.

APPLICATION rum) JULY 1. 1907.

1n: noun: 'IYIIS co WAJPHNGYON, n. c.

UNITED STATES PATENT OFFICE.

PAUL LUX, O l WATERBURY, CONN ECTIGUT. ASSIGNOR TO THE WATERBURY CLOCKCO. OF WATERBURY, GONNEOlIC-UT, A CORPORATION.

ALARM-CLOCK.

Specification of Letters Patent.

Patented Sept. 24, 1907.

Application filed July 1,1907. Serial No. 381,663

with my improved alarm-mechanism, the back cap oi the case and the hellbeing also shown. Fig. 2 a

view through the movement in vertical section showing parts (i the alarmmechanism. Fig. 3 a detached plan view oi the pivotal switch. Fig. 4 adetached view oi the ve -arbor with the switch-plate removed. Fig. 5another view oi the verge arbor showing the switclrplate appliedthereto. Fig. (5 a detached view oi the switch-plate.

My invention relates to an improvement in that class oi alarm-clocks inwhich provision is made ior readily converting the clock from a long orcontinuous-alarm clock to an intermittent or spasmodicalarm. clock. theobject being to accomplish this end by a mechanism oi extremesimplicity, small cost and little liability to derangement.

With these ends in view, my invention consists in a convertiblealarm-mechanism ior alarm-clocks the said mechanism having certaindetails oi construction and combinations oi parts as will be hereinalterdescribed and pointed out in the claims.

in carrying out my invention I employ a. part 2 which ior want oi a.better term I shall call a converting switch tor the reason that itslunetion is to convert the clock irom a continuous to a spasmodic alarmThis switch is secured by a pivot 1-3 to the outer end oi a switch-plateor carrier 4 secured by two rivets 5 to the forward end oi a verge arbor6 which is milled to iorm a. flat late or seat 7 ior the said plate 4 tobear upon. A stop-pin S mounted in the inner end oi the said platepasses through a slot 9 in the switch and limits the swinging movementtihereoi. The said plate t is iormed with a hole 10 tor the pivot i). with two holes ill. for the rivets 5 and with a hole 12 ior the step-pinS. The verge-arbor ti is formed with two holes 6 ior the reception ofthe rivets 5. Under this construction the switch is carand vice versa.

ried by and oscillates with the verge-arbor (i which is provided in theusual manner with a verge l3 and a hammer tail l-l carrying a hammer 15arranged in position to strike the concentrically arranged bell lothough obviously my invention is not confined to use in that class oiclocks in which the bell is concentrically arranged at the back thereoi.The said switch 2 is provided with a spasmodie-alarm arm 17 iormed at 1its outer end with forwardly turned linger 18 which coacts with acam-wheel 19 mounted upon the arbor 2t) oi the 3rd wheel oi thetime-train which drives the said arm. The switch 2 is also providedwith. an operating lover or linger 2i bent as shown to extend rearwardlythrough the back-cap 22 oi the clock-case (not shown.) and through thebell to which is formed with a slot 23 to give it passage.

hen the lever 21. is thrown in one direction the switch 2 is swung onthe pivot 3 and the finger 18 of the arm 17 brought into operativerelations with the teeth oi the cam-wheel 9 which is revolved by thetime-train and secures an intermittent or spasmodic sounding oi thealarm as the high points oi the teeth prevent the vibration oi the lever17 which is iree to vibrate through its lull sweep only when the linger18 can vibrate between the teeth oi the canrwheel. As long, thereiore,as the switch 2 is set ior the coaction oi the finger 1S oi the lever 17with the teeth oi the cam wheel 19 the clock will sound a spasmodicalarm. On the other hand, when the lever 21 is moved in the oppositedirection, the linger 1S oi the lever 17 is swung back as shown bybroken lines in Fig. l away irom the cam-wheel 19 which is thusvirtually cut out oi action leaving the lever 17 iree to vibrate throughits iull sweep until the alarm spring runs down. whereby the clock isconverted into a long or continuous alarm. 7

All that is necessary to convert the clock irom an alarm oi one kind tothe other is to swing the lever 21. very slightly. The let oii mechanismmay be oi any approved construction and is so well known not to requiredetailed illustration or description. It is sufficient to say that itcomprises a let-oli spring 24 coacting with the alarm-wheel 25 on thealarm-set arbor 2G and also coacting with the let-off wire 27 carried bythe verge-arbor (5.

I claim:

1. In a convertible alarnrmechanism, the combination with a vibratingarbor, of a pivotal switch mounted thereupon so as to vibrate therewith,a wheel driven by the time-train and located in position to periodicallyinterrupt the vibrations of the said switch when the same is pivotallyswung into position for coaction with it, the pivotal movement of theswitch being in a plane at a right angle to the plane of the wheel.

2. In a convertible alarm mechanism, the combination with a verge-arbor,of a carrier mounted thereupon, a switch pivotally mounted upon the saidcarrier and comprising a spasmodioalarm arm and an operating lever, anda wheel driven by the time-train and located in position to coact withthe spasmodic alarm arm of the In testimony whereof, I have signed thisspecification in v the presence of two subscribing witnesses.

PAUL LUX.

Witnesses:

SAMUEL SLOAN, CniFFoRn H. HALL.

